git.maemo.org Git - modest/blob - src/modest-ui-dimming-rules.c

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include <config.h>
  32 #endif /*HAVE_CONFIG_H*/
  33
  34 #include <string.h>
  35 #include "modest-ui-dimming-rules.h"
  36 #include "modest-ui-actions.h"
  37 #include "modest-account-mgr-helpers.h"
  38 #include "modest-dimming-rule.h"
  39 #include "modest-debug.h"
  40 #include "modest-tny-folder.h"
  41 #include "modest-tny-account.h"
  42 #include "modest-tny-msg.h"
  43 #include "modest-tny-mime-part.h"
  44 #include "modest-text-utils.h"
  45 #include "widgets/modest-folder-view.h"
  46 #include "modest-address-book.h"
  47 #include <widgets/modest-attachments-view.h>
  48 #include <modest-runtime.h>
  49 #include <tny-simple-list.h>
  50 #include <widgets/modest-recpt-editor.h>
  51 #include <gtkhtml/gtkhtml.h>
  52 #include <modest-runtime.h>
  53 #ifdef MODEST_TOOLKIT_HILDON2
  54 #include <modest-header-window.h>
  55 #include <modest-folder-window.h>
  56 #endif
  57
  58
  59 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  60 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  61 static gboolean _invalid_attach_selected (ModestWindow *win,
  62                                           gboolean unique, gboolean for_view, gboolean for_remove,
  63                                           ModestDimmingRule *rule);
  64 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  65 static gboolean _clipboard_is_empty (ModestWindow *win);
  66 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  67 static gboolean _selected_folder_not_writeable (ModestMainWindow *win, gboolean for_paste);
  68 static gboolean _selected_folder_not_moveable (ModestMainWindow *win);
  69 static gboolean _selected_folder_not_renameable (ModestMainWindow *win);
  70 static gboolean _selected_folder_not_deletable (ModestMainWindow *win);
  71 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  72 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  73 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  74 static gboolean _header_view_is_all_selected (ModestMainWindow *win);
  75 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  76 static gboolean _folder_view_has_focus (ModestWindow *win);
  77 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  78 static gboolean _msg_download_in_progress (ModestWindow *win);
  79 static gboolean _msg_download_completed (ModestMainWindow *win);
  80 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  81 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  82 static gboolean _transfer_mode_enabled (ModestWindow *win);
  83 static gboolean _selected_folder_has_subfolder_with_same_name (ModestWindow *win);
  84 static void fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  85 static gboolean _send_receive_in_progress (ModestWindow *win);
  86 static gboolean _msgs_send_in_progress (void);
  87 static gboolean _all_msgs_in_sending_status (ModestHeaderView *header_view) G_GNUC_UNUSED;
  88
  89 static DimmedState *
  90 _define_main_window_dimming_state (ModestMainWindow *window)
  91 {
  92         DimmedState *state = NULL;
  93         GtkWidget *focused_widget = NULL;
  94         GtkWidget *header_view = NULL;
  95         GtkTreeModel *model = NULL;
  96         TnyList *selected_headers = NULL;
  97         TnyIterator *iter = NULL;
  98         TnyHeader *header = NULL;
  99         ModestCacheMgr *cache_mgr = NULL;
 100         GHashTable *send_queue_cache = NULL;
 101         ModestTnySendQueue *send_queue = NULL;
 102         GSList *send_queues = NULL, *node = NULL;
 103         ModestWindowMgr *mgr = NULL;
 104         gboolean found = FALSE;
 105         gchar *msg_uid = NULL;
 106         TnyHeaderFlags flags;
 107         gboolean all_deleted = TRUE;
 108         gboolean all_seen = TRUE;
 109         gboolean all_cached = TRUE;
 110         gboolean all_has_attach = TRUE;
 111         TnyFolder *folder = NULL;
 112
 113         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
 114
 115         /* Init state */
 116         state = g_slice_new0 (DimmedState);
 117         state->n_selected = 0;
 118         state->already_opened_msg = 0;
 119         state->any_marked_as_deleted = FALSE;
 120         state->all_marked_as_deleted = FALSE;
 121         state->any_marked_as_seen = FALSE;
 122         state->all_marked_as_seen = FALSE;
 123         state->any_marked_as_cached = FALSE;
 124         state->all_marked_as_cached = FALSE;
 125         state->any_has_attachments = FALSE;
 126         state->all_has_attachments = FALSE;
 127         state->sent_in_progress = FALSE;
 128         state->all_selected = FALSE;
 129
 130         /* Get focused widget */
 131         focused_widget = gtk_window_get_focus (GTK_WINDOW (window));
 132         if (MODEST_IS_FOLDER_VIEW (focused_widget)) {
 133                 state->n_selected++;
 134                 return state;
 135         } else if (MODEST_IS_HEADER_VIEW (focused_widget)) {
 136                 header_view = focused_widget;
 137         } else {
 138                 header_view = modest_main_window_get_child_widget (window, MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 139         }
 140
 141         /* Get header view and selected headers */
 142         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 143         if (!selected_headers)
 144                 return state;
 145
 146         /* Examine selected headers */
 147         iter = tny_list_create_iterator (selected_headers);
 148         while (!tny_iterator_is_done (iter)) {
 149                 header = TNY_HEADER (tny_iterator_get_current (iter));
 150                 flags = tny_header_get_flags (header);
 151
 152                 /* No selected */
 153                 state->n_selected++;
 154
 155                 /* Already opened */
 156                 mgr = modest_runtime_get_window_mgr ();
 157                 if (modest_window_mgr_find_registered_header (mgr, header, NULL))
 158                         state->already_opened_msg++;
 159
 160
 161                 /* Mark as deleted */
 162                 all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 163                 state->all_marked_as_deleted = all_deleted;
 164                 if (!state->any_marked_as_deleted)
 165                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 166
 167                 /* Mark as seen */
 168                 all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 169                 state->all_marked_as_seen = all_seen;
 170                 if (!state->any_marked_as_seen)
 171                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 172
 173                 /* Mark as cached */
 174                 all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 175                 state->all_marked_as_cached = all_cached;
 176                 if (!state->any_marked_as_cached)
 177                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 178
 179                 /* Mark has_attachments */
 180                 all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 181                 state->all_has_attachments = all_has_attach;
 182                 if (!state->any_has_attachments)
 183                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 184
 185                 /* sent in progress */
 186                 folder = tny_header_get_folder (header);
 187                 if (folder) {
 188                         if (modest_tny_folder_guess_folder_type (folder) == TNY_FOLDER_TYPE_OUTBOX) {
 189                                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 190                                 if (!state->sent_in_progress) {
 191                                         cache_mgr = modest_runtime_get_cache_mgr ();
 192                                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 193                                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 194
 195                                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 196
 197                                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 198                                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 199
 200                                                 /* Check if msg uid is being processed inside send queue */
 201                                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 202                                         }
 203                                         state->sent_in_progress = found;
 204                                 }
 205                         }
 206                         g_object_unref (folder);
 207                 }
 208                 tny_iterator_next (iter);
 209                 g_object_unref (header);
 210         }
 211
 212         /* check if all the headers are selected or not */
 213         model = gtk_tree_view_get_model(GTK_TREE_VIEW(header_view));
 214         if (model != NULL){
 215                 gint count;
 216                 count = gtk_tree_model_iter_n_children(model, NULL);
 217                 if(state->n_selected == count)
 218                         state->all_selected = TRUE;
 219         }
 220
 221         /* Free */
 222         g_free(msg_uid);
 223         g_object_unref(selected_headers);
 224         g_object_unref(iter);
 225         g_slist_free (send_queues);
 226
 227         return state;
 228 }
 229
 230 static DimmedState *
 231 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 232 {
 233         DimmedState *state = NULL;
 234         TnyHeader *header = NULL;
 235         ModestCacheMgr *cache_mgr = NULL;
 236         GHashTable *send_queue_cache = NULL;
 237         ModestTnySendQueue *send_queue = NULL;
 238         GSList *send_queues = NULL, *node = NULL;
 239         gboolean found = FALSE;
 240         gchar *msg_uid = NULL;
 241         TnyHeaderFlags flags;
 242         gboolean all_deleted = TRUE;
 243         gboolean all_seen = TRUE;
 244         gboolean all_cached = TRUE;
 245         gboolean all_has_attach = TRUE;
 246
 247         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 248
 249         /* Init state */
 250         state = g_slice_new0 (DimmedState);
 251         state->n_selected = 0;
 252         state->already_opened_msg = 0;
 253         state->any_marked_as_deleted = FALSE;
 254         state->all_marked_as_deleted = FALSE;
 255         state->any_marked_as_seen = FALSE;
 256         state->all_marked_as_seen = FALSE;
 257         state->any_marked_as_cached = FALSE;
 258         state->all_marked_as_cached = FALSE;
 259         state->any_has_attachments = FALSE;
 260         state->all_has_attachments = FALSE;
 261         state->sent_in_progress = FALSE;
 262
 263         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 264         if (header == NULL)
 265                 return state;
 266         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 267         flags = tny_header_get_flags (header);
 268
 269         /* Selected */
 270         state->n_selected++;
 271
 272         /* Mark as deleted */
 273         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 274         state->all_marked_as_deleted = all_deleted;
 275         if (!state->any_marked_as_deleted)
 276                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 277
 278         /* Mark as seen */
 279         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 280         state->all_marked_as_seen = all_seen;
 281         if (!state->any_marked_as_seen)
 282                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 283
 284         /* Mark as cached */
 285         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 286         state->all_marked_as_cached = all_cached;
 287         if (!state->any_marked_as_cached)
 288                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 289
 290         /* Mark has_attachments */
 291         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 292         state->all_has_attachments = all_has_attach;
 293         if (!state->any_has_attachments)
 294                 state->any_has_attachments = (flags & TNY_HEADER_FLAG_ATTACHMENTS)?1:0;
 295
 296         /* sent in progress */
 297         msg_uid = modest_tny_send_queue_get_msg_id (header);
 298         if (!state->sent_in_progress) {
 299                 cache_mgr = modest_runtime_get_cache_mgr ();
 300                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 301                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 302
 303                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 304
 305                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 306                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 307
 308                         /* Check if msg uid is being processed inside send queue */
 309                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 310                 }
 311                 state->sent_in_progress = found;
 312         }
 313
 314         /* Free */
 315         g_free(msg_uid);
 316         g_object_unref (header);
 317         g_slist_free (send_queues);
 318
 319         return state;
 320 }
 321
 322
 323 DimmedState *
 324 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 325 {
 326         DimmedState *state = NULL;
 327
 328         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 329
 330         if (MODEST_IS_MAIN_WINDOW (window))
 331                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 332         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 333                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 334         }
 335
 336         return state;
 337 }
 338
 339 gboolean
 340 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 341 {
 342         ModestDimmingRule *rule = NULL;
 343         gboolean dimmed = FALSE;
 344
 345         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 346         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 347         rule = MODEST_DIMMING_RULE (user_data);
 348
 349         /* Check dimmed rule */
 350         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 351 #ifndef MODEST_TOOLKIT_HILDON2
 352                 dimmed = _msg_download_in_progress (win);
 353                 if (dimmed)
 354                         modest_dimming_rule_set_notification (rule, "");
 355 #endif
 356         } else if (MODEST_IS_MAIN_WINDOW(win)) {
 357                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
 358                                                           TRUE);
 359                 if (dimmed)
 360                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
 361         }
 362
 363         return dimmed;
 364 }
 365
 366 gboolean
 367 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 368 {
 369         ModestDimmingRule *rule = NULL;
 370         GtkWidget *folder_view = NULL;
 371         TnyFolderStore *parent_folder = NULL;
 372         gboolean dimmed = FALSE;
 373
 374         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 375         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 376         rule = MODEST_DIMMING_RULE (user_data);
 377
 378         dimmed = _transfer_mode_enabled (win);
 379         if (dimmed) {
 380                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 381                 return dimmed;
 382         }
 383
 384         /* Get selected folder as parent of new folder to create */
 385         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 386                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 387         if (!folder_view) /* folder view may not have been created yet */
 388                 return TRUE;
 389
 390         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 391         if (!parent_folder)
 392                 return TRUE;
 393
 394         if (TNY_IS_ACCOUNT (parent_folder)) {
 395                 /* If it's the local account then do not dim */
 396                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 397                         dimmed = FALSE;
 398                 } else {
 399                         ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (parent_folder));
 400                         if (protocol_type != MODEST_PROTOCOL_REGISTRY_TYPE_INVALID) {
 401                                 ModestProtocolRegistry *protocol_registry;
 402
 403                                 protocol_registry = modest_runtime_get_protocol_registry ();
 404                                 /* If account does not support folders (pop) then dim */
 405                                 dimmed = (!modest_protocol_registry_protocol_type_has_tag (protocol_registry, protocol_type,
 406                                                                                            MODEST_PROTOCOL_REGISTRY_STORE_HAS_FOLDERS));
 407                                 if (dimmed)
 408                                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 409                         }
 410                 }
 411         } else {
 412                 TnyFolderType types[3];
 413
 414                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 415                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 416                 types[2] = TNY_FOLDER_TYPE_SENT;
 417
 418                 /* Apply folder rules */
 419                 if (!dimmed) {
 420                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), FALSE);
 421                         if (dimmed)
 422                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 423                 }
 424                 if (!dimmed) {
 425                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 426                         if (dimmed)
 427                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 428                 }
 429         }
 430
 431         /* if not the folder is selected then dim */
 432         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 433                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 434         if (folder_view && !gtk_widget_is_focus (folder_view))
 435                 dimmed = TRUE;
 436
 437         g_object_unref (parent_folder);
 438
 439         return dimmed;
 440 }
 441
 442 gboolean
 443 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 444 {
 445         ModestDimmingRule *rule = NULL;
 446         GtkWidget *folder_view = NULL;
 447         GtkWidget *header_view = NULL;
 448         gboolean dimmed = FALSE;
 449
 450         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 451         rule = MODEST_DIMMING_RULE (user_data);
 452
 453         if (MODEST_IS_MAIN_WINDOW (win)) {
 454                 /* Get the folder view */
 455                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 456                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 457
 458                 /* Get header view */
 459                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 460                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 461
 462                 if (header_view && gtk_widget_is_focus (header_view))
 463                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 464
 465                 if (folder_view && gtk_widget_is_focus (folder_view))
 466                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 467
 468                 if (header_view && folder_view &&
 469                     !gtk_widget_is_focus (header_view) &&
 470                     !gtk_widget_is_focus (folder_view)) {
 471                         dimmed = TRUE;
 472                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 473                 }
 474
 475 #ifdef MODEST_TOOLKIT_HILDON2
 476         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
 477                 dimmed = modest_ui_dimming_rules_on_folder_window_delete (win, user_data);
 478         } else if (MODEST_IS_HEADER_WINDOW (win)) {
 479
 480                 if (!dimmed)
 481                         dimmed = _transfer_mode_enabled (win);
 482
 483                 if (dimmed)
 484                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 485
 486                 if (!dimmed) {
 487                         GtkWidget *header_view;
 488                         TnyFolder *folder;
 489
 490                         header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
 491                         folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
 492                         if (folder) {
 493                                 dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
 494                                         modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
 495
 496                                 if (!dimmed &&
 497                                     (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
 498                                         dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
 499                                 }
 500                                 g_object_unref (folder);
 501                         }
 502                 }
 503
 504 #endif
 505         } else {
 506                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 507         }
 508
 509         return dimmed;
 510 }
 511
 512
 513
 514 gboolean
 515 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 516 {
 517         ModestDimmingRule *rule = NULL;
 518         TnyFolderType types[6];
 519         gboolean dimmed = FALSE;
 520
 521         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 522         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 523         rule = MODEST_DIMMING_RULE (user_data);
 524
 525         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 526         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 527         types[2] = TNY_FOLDER_TYPE_SENT;
 528         types[3] = TNY_FOLDER_TYPE_INBOX;
 529         types[4] = TNY_FOLDER_TYPE_ROOT;
 530         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 531
 532
 533         /* Check dimmed rule */
 534         dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
 535         if (dimmed)
 536                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 537         if (!dimmed) {
 538                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 539                 if (dimmed)
 540                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 541         }
 542         if (!dimmed) {
 543                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 544                 if (dimmed)
 545                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 546         }
 547         if (!dimmed) {
 548                 dimmed = _transfer_mode_enabled (win);
 549                 if (dimmed)
 550                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 551         }
 552
 553         return dimmed;
 554 }
 555
 556 gboolean
 557 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 558 {
 559         ModestDimmingRule *rule = NULL;
 560         gboolean dimmed = FALSE;
 561
 562 #ifdef MODEST_TOOLKIT_HILDON2
 563         if (MODEST_IS_HEADER_WINDOW (win)) {
 564                 return FALSE;
 565         }
 566 #endif
 567
 568         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 569         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 570         rule = MODEST_DIMMING_RULE (user_data);
 571
 572         /* Check dimmed rule */
 573         dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 574
 575         if (!dimmed)
 576                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 577
 578         return dimmed;
 579
 580 }
 581
 582 gboolean
 583 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 584 {
 585         ModestDimmingRule *rule = NULL;
 586         TnyFolderType types[4];
 587         gboolean dimmed = FALSE;
 588
 589         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 590         rule = MODEST_DIMMING_RULE (user_data);
 591
 592         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 593         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 594         types[2] = TNY_FOLDER_TYPE_SENT;
 595         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 596
 597         /* Check dimmed rule */
 598         if (MODEST_IS_MAIN_WINDOW (win)) {
 599                 dimmed = _selected_folder_not_renameable (MODEST_MAIN_WINDOW(win));
 600                 if (dimmed)
 601                         modest_dimming_rule_set_notification (rule, "");
 602                 if (!dimmed) {
 603                         dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 604                         if (dimmed)
 605                                 modest_dimming_rule_set_notification (rule, "");
 606                 }
 607         }
 608
 609 #ifdef MODEST_TOOLKIT_HILDON2
 610         if (MODEST_IS_FOLDER_WINDOW (win)) {
 611                 ModestFolderView *folder_view;
 612                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
 613                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
 614                                                                        MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE);
 615         }
 616 #endif
 617
 618         if (!dimmed) {
 619                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 620                 if (dimmed)
 621                         modest_dimming_rule_set_notification (rule, "");
 622         }
 623
 624         return dimmed;
 625 }
 626
 627 gboolean
 628 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 629 {
 630         ModestDimmingRule *rule = NULL;
 631         gboolean dimmed = FALSE;
 632         const DimmedState *state = NULL;
 633
 634         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 635         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 636         rule = MODEST_DIMMING_RULE (user_data);
 637         state = modest_window_get_dimming_state (win);
 638
 639         /* Check dimmed rule */
 640         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 641         if (!dimmed) {
 642                 dimmed = state->any_marked_as_deleted;
 643                 if (dimmed) {
 644                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 645                         modest_dimming_rule_set_notification (rule, msg);
 646                         g_free (msg);
 647                 }
 648         }
 649         if (!dimmed) {
 650                 dimmed = _selected_msg_sent_in_progress (win);
 651                 if (dimmed)
 652                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 653         }
 654
 655         return dimmed;
 656 }
 657
 658 gboolean
 659 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 660 {
 661         ModestDimmingRule *rule = NULL;
 662         gboolean dimmed = FALSE;
 663         TnyFolderType types[3];
 664
 665         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 666         rule = MODEST_DIMMING_RULE (user_data);
 667
 668         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 669         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 670         types[2] = TNY_FOLDER_TYPE_ROOT;
 671
 672         /* Check dimmed rule */
 673         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 674         if (dimmed)
 675                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 676
 677         /* main window dimming rules */
 678         if (MODEST_IS_MAIN_WINDOW(win)) {
 679
 680                 if (!dimmed) {
 681                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 682                         if (dimmed)
 683                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 684                 }
 685                 if (!dimmed) {
 686                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 687                 }
 688         /* msg view window dimming rules */
 689         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 690
 691                 /* This could happen if we load the msg view window with a
 692                    preview before loading the full message */
 693                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 694                 if (!msg) {
 695                         dimmed = TRUE;
 696                 } else {
 697                         g_object_unref (msg);
 698                 }
 699
 700                 if (!dimmed) {
 701                         dimmed = _transfer_mode_enabled (win);
 702                         if (dimmed)
 703                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 704                 }
 705                 if (!dimmed) {
 706                         dimmed = _msg_download_in_progress (win);
 707                         if (dimmed)
 708                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 709                 }
 710         }
 711
 712         return dimmed;
 713 }
 714
 715
 716 gboolean
 717 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 718 {
 719         ModestDimmingRule *rule = NULL;
 720         gboolean dimmed = FALSE;
 721
 722         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 723         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 724         rule = MODEST_DIMMING_RULE (user_data);
 725
 726         /* Check dimmed rule */
 727         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 728         if (!dimmed) {
 729                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 730                 if (dimmed)
 731                         modest_dimming_rule_set_notification (rule, "");
 732         }
 733
 734         return dimmed;
 735 }
 736
 737 gboolean
 738 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 739 {
 740         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 741
 742         return TRUE;
 743 }
 744
 745 static gboolean
 746 _message_already_sent (ModestMsgViewWindow *view_window)
 747 {
 748         TnyHeader *header;
 749         TnyFolder *folder;
 750         gboolean already_sent = FALSE;
 751
 752         header = modest_msg_view_window_get_header (view_window);
 753         if (header) {
 754                 folder = tny_header_get_folder (header);
 755                 if (folder) {
 756                         if (modest_tny_folder_guess_folder_type (folder) ==
 757                             TNY_FOLDER_TYPE_OUTBOX) {
 758                                 ModestTnySendQueueStatus status =
 759                                         modest_tny_all_send_queues_get_msg_status (header);
 760                                 if (status == MODEST_TNY_SEND_QUEUE_UNKNOWN ||
 761                                     status == MODEST_TNY_SEND_QUEUE_SENDING)
 762                                         already_sent = TRUE;
 763                         }
 764                         g_object_unref (folder);
 765                 }
 766                 g_object_unref (header);
 767         }
 768         return already_sent;
 769 }
 770
 771
 772 gboolean
 773 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 774 {
 775         ModestDimmingRule *rule = NULL;
 776         const DimmedState *state = NULL;
 777         gboolean dimmed = FALSE;
 778
 779         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 780         rule = MODEST_DIMMING_RULE (user_data);
 781         state = modest_window_get_dimming_state (win);
 782
 783         /* If we're in transfer mode then do not allow to delete messages */
 784         dimmed = _transfer_mode_enabled (win);
 785         if (dimmed) {
 786                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 787                 return dimmed;
 788         }
 789
 790         /* Check dimmed rule */
 791         if (MODEST_IS_MAIN_WINDOW (win)) {
 792                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 793                 if (dimmed)
 794                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 795                 if (!dimmed) {
 796                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 797                 }
 798                 if (!dimmed) {
 799                         dimmed = state->sent_in_progress;
 800                         if (dimmed)
 801                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 802                 }
 803                 if (!dimmed) {
 804                         dimmed = state->any_marked_as_deleted;
 805                         if (dimmed) {
 806                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 807                                 modest_dimming_rule_set_notification (rule, msg);
 808                                 g_free (msg);
 809                         }
 810                 }
 811                 if (!dimmed) {
 812                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 813                         if (dimmed) {
 814                                 gchar *message = NULL;
 815
 816                                 message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"),
 817                                                           state->already_opened_msg);
 818                                 modest_dimming_rule_set_notification (rule, message);
 819                                 g_free(message);
 820                         }
 821
 822                 }
 823         }
 824         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 825                 /* This could happen if we load the msg view window with a
 826                    preview before loading the full message */
 827                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 828                 if (!msg) {
 829                         dimmed = TRUE;
 830                 } else {
 831                         g_object_unref (msg);
 832                 }
 833
 834                 if (!dimmed) {
 835                         dimmed = state->any_marked_as_deleted;
 836                         if (dimmed) {
 837                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 838                                 modest_dimming_rule_set_notification (rule, msg);
 839                                 g_free (msg);
 840                         }
 841                 }
 842                 if (!dimmed) {
 843                         dimmed = state->sent_in_progress;
 844                         if (dimmed)
 845                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 846                 }
 847
 848                 /* This could happen if we're viewing a message of the
 849                    outbox that has been already sent */
 850                 if (!dimmed)
 851                         dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
 852
 853                 /* The delete button should be dimmed when viewing an attachment,
 854                  * but should be enabled when viewing a message from the list,
 855                  * or when viewing a search result.
 856                  */
 857                 if (!dimmed) {
 858                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 859                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 860                                 if (dimmed) {
 861                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 862                                 }
 863                         }
 864                 }
 865         }
 866
 867         return dimmed;
 868 }
 869
 870 gboolean
 871 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 872 {
 873         ModestDimmingRule *rule = NULL;
 874         GtkWidget *header_view = NULL;
 875         gboolean dimmed = FALSE;
 876
 877         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 878         rule = MODEST_DIMMING_RULE (user_data);
 879
 880         /* main window dimming rules */
 881         if (MODEST_IS_MAIN_WINDOW(win)) {
 882
 883                 /* Check dimmed rule */
 884                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 885                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 886
 887                 /* If the header view has the focus: */
 888                 if (header_view && gtk_widget_is_focus (header_view)) {
 889                         /* Check dimmed rule */
 890                         if (!dimmed)
 891                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 892                 }
 893                 else {
 894                         /* If the folder view has the focus: */
 895                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 896                                 MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 897                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 898                                 TnyFolderStore *folder_store
 899                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 900                                 if (folder_store) {
 901                                         /* Only enable for folders, not accounts,
 902                                          * though the UI spec is not clear about that.
 903                                          * If we enable this for accounts then we must
 904                                          * add code to handle them in modest_ui_actions_on_details(). */
 905                                         if (!TNY_IS_FOLDER(folder_store)) {
 906                                                 dimmed = TRUE;
 907                                                 modest_dimming_rule_set_notification (rule, "");
 908                                         }
 909
 910                                         g_object_unref (folder_store);
 911                                 } else {
 912                                         dimmed = TRUE;
 913                                         modest_dimming_rule_set_notification (rule, "");
 914                                 }
 915                                 if (!dimmed) {
 916                                         dimmed = _msg_download_in_progress (win);
 917                                         if (dimmed)
 918                                                 modest_dimming_rule_set_notification (rule, "");
 919                                 }
 920
 921                         } else {
 922                                 return TRUE;
 923                         }
 924                 }
 925
 926         /* msg view window dimming rules */
 927         } else {
 928                 /* Check dimmed rule */
 929                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 930                         dimmed = _msg_download_in_progress (win);
 931                 if (dimmed)
 932                         modest_dimming_rule_set_notification (rule, "");
 933                 if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
 934                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 935                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 936                         }
 937                         if (dimmed)
 938                                 modest_dimming_rule_set_notification (rule, "");
 939                 }
 940         }
 941
 942         return dimmed;
 943 }
 944
 945
 946 gboolean
 947 modest_ui_dimming_rules_on_mark_as_read_msg_in_view (ModestWindow *win, gpointer user_data)
 948 {
 949         ModestDimmingRule *rule = NULL;
 950         TnyHeader *header;
 951         TnyHeaderFlags flags;
 952         gboolean dimmed = FALSE;
 953
 954
 955         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 956         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 957         rule = MODEST_DIMMING_RULE (user_data);
 958
 959         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 960         if (!header) {
 961                 dimmed = TRUE;
 962         }
 963
 964         /* If the viewer is showing a message sent as attachment */
 965         if (!dimmed)
 966                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 967
 968         if (!dimmed) {
 969                 flags = tny_header_get_flags (header);
 970                 if (flags & TNY_HEADER_FLAG_SEEN)
 971                         dimmed = TRUE;
 972         }
 973
 974         if (header)
 975                 g_object_unref (header);
 976         return dimmed;
 977 }
 978
 979
 980 gboolean
 981 modest_ui_dimming_rules_on_mark_as_unread_msg_in_view (ModestWindow *win, gpointer user_data)
 982 {
 983         ModestDimmingRule *rule = NULL;
 984         TnyHeader *header;
 985         TnyHeaderFlags flags;
 986         gboolean dimmed = FALSE;
 987
 988
 989         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 990         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 991         rule = MODEST_DIMMING_RULE (user_data);
 992
 993         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 994         if (!header) {
 995                 dimmed = TRUE;
 996         }
 997
 998         /* If the viewer is showing a message sent as attachment */
 999         if (!dimmed)
1000                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1001
1002         if (!dimmed) {
1003                 flags = tny_header_get_flags (header);
1004                 if (!(flags & TNY_HEADER_FLAG_SEEN))
1005                         dimmed = TRUE;
1006         }
1007
1008         if (header)
1009                 g_object_unref (header);
1010         return dimmed;
1011 }
1012
1013 gboolean
1014 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
1015 {
1016         ModestDimmingRule *rule = NULL;
1017         TnyHeaderFlags flags;
1018         const DimmedState *state = NULL;
1019         gboolean dimmed = FALSE;
1020
1021         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1022         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1023         rule = MODEST_DIMMING_RULE (user_data);
1024         state = modest_window_get_dimming_state (win);
1025
1026         flags = TNY_HEADER_FLAG_SEEN;
1027
1028         /* Check dimmed rule */
1029         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1030         if (!dimmed) {
1031                 dimmed = state->all_marked_as_seen;
1032                 if (dimmed)
1033                         modest_dimming_rule_set_notification (rule, "");
1034         }
1035
1036         return dimmed;
1037 }
1038
1039 gboolean
1040 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
1041 {
1042         ModestDimmingRule *rule = NULL;
1043         TnyHeaderFlags flags;
1044         const DimmedState *state = NULL;
1045         gboolean dimmed = FALSE;
1046
1047         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1048         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1049         rule = MODEST_DIMMING_RULE (user_data);
1050         state = modest_window_get_dimming_state (win);
1051
1052         flags = TNY_HEADER_FLAG_SEEN;
1053
1054         /* Check dimmed rule */
1055         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1056         if (!dimmed) {
1057                 dimmed = !state->any_marked_as_seen;
1058                 if (dimmed)
1059                         modest_dimming_rule_set_notification (rule, "");
1060         }
1061
1062         return dimmed;
1063 }
1064
1065 gboolean
1066 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
1067 {
1068         ModestDimmingRule *rule = NULL;
1069         gboolean dimmed = FALSE;
1070
1071         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1072         rule = MODEST_DIMMING_RULE (user_data);
1073
1074         if (MODEST_IS_MAIN_WINDOW (win))
1075                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
1076 #ifdef MODEST_TOOLKIT_HILDON2
1077         else if (MODEST_IS_HEADER_WINDOW (win))
1078                 dimmed = modest_ui_dimming_rules_on_header_window_move_to (win, user_data);
1079         else if (MODEST_IS_FOLDER_WINDOW (win))
1080                 dimmed = modest_ui_dimming_rules_on_folder_window_move_to (win, user_data);
1081 #endif
1082         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
1083                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
1084
1085         return dimmed;
1086 }
1087
1088
1089 gboolean
1090 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
1091 {
1092         GtkWidget *folder_view = NULL;
1093         ModestDimmingRule *rule = NULL;
1094         const DimmedState *state = NULL;
1095         gboolean dimmed = FALSE;
1096
1097         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
1098         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1099         rule = MODEST_DIMMING_RULE (user_data);
1100         state = modest_window_get_dimming_state (win);
1101
1102         /* Get the folder view */
1103         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1104                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1105
1106
1107         /* Check diming rules for folders transfer  */
1108         if (folder_view && gtk_widget_is_focus (folder_view)) {
1109                 TnyFolderType types[5];
1110
1111                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
1112                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
1113                 types[2] = TNY_FOLDER_TYPE_SENT;
1114                 types[3] = TNY_FOLDER_TYPE_ROOT;
1115                 types[4] = TNY_FOLDER_TYPE_INBOX;
1116
1117                 /* Apply folder rules */
1118                 dimmed = _selected_folder_not_moveable (MODEST_MAIN_WINDOW(win));
1119                 if (dimmed)
1120                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1121                 if (!dimmed) {
1122                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
1123                         if (dimmed)
1124                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1125                 }
1126         }
1127
1128         /* Check diming rules for messages transfer  */
1129         if (!dimmed) {
1130                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1131                 if (dimmed) {
1132                         gchar *message = g_strdup_printf(_("emev_nc_unabletomove_items"),
1133                                                          state->already_opened_msg);
1134                         modest_dimming_rule_set_notification (rule, message);
1135                         g_free(message);
1136                 }
1137         }
1138         if (!dimmed) {
1139                 if (!(folder_view && gtk_widget_is_focus (folder_view)))
1140                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1141
1142         }
1143         if (!dimmed) {
1144                 dimmed = _selected_msg_sent_in_progress (win);
1145                 if (dimmed)
1146                         modest_dimming_rule_set_notification (rule, _("sfil_ib_unable_to_move_selected_items"));
1147         }
1148
1149         return dimmed;
1150 }
1151
1152 gboolean
1153 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
1154 {
1155         ModestDimmingRule *rule = NULL;
1156         gboolean dimmed = FALSE;
1157
1158         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1159         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1160         rule = MODEST_DIMMING_RULE (user_data);
1161
1162         /* This could happen if we load the msg view window with a
1163            preview before loading the full message */
1164         TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1165         if (!msg) {
1166                 return TRUE;
1167         } else {
1168                 g_object_unref (msg);
1169         }
1170
1171         /* Check dimmed rule */
1172
1173         dimmed = _transfer_mode_enabled (win);
1174         if (dimmed)
1175                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1176         if (!dimmed) {
1177                 dimmed = modest_window_get_dimming_state (win)->any_marked_as_deleted;
1178                 if (dimmed) {
1179                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
1180                         modest_dimming_rule_set_notification (rule, msg);
1181                         g_free (msg);
1182                 }
1183         }
1184
1185         if (!dimmed) {
1186                 dimmed = _selected_msg_sent_in_progress (win);
1187                 if (dimmed)
1188                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1189         }
1190
1191         /* This could happen if we're viewing a message of the outbox
1192            that has been already sent */
1193         if (!dimmed)
1194                 dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
1195
1196         if (!dimmed) {
1197                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1198                         /* The move_to button should be dimmed when viewing an attachment,
1199                          * but should be enabled when viewing a message from the list,
1200                          * or when viewing a search result.
1201                          */
1202                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
1203                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1204                         }
1205                 }
1206
1207                 if (dimmed)
1208                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1209         }
1210
1211         return dimmed;
1212 }
1213
1214 #ifdef MODEST_TOOLKIT_HILDON2
1215 #endif
1216
1217 gboolean
1218 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
1219 {
1220         ModestDimmingRule *rule = NULL;
1221         gboolean dimmed = FALSE;
1222
1223         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1224         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1225         rule = MODEST_DIMMING_RULE (user_data);
1226
1227         /* This could happen if we load the msg view window with a
1228            preview before loading the full message */
1229         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1230                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1231                 if (!msg) {
1232                         return TRUE;
1233                 } else {
1234                         g_object_unref (msg);
1235                 }
1236         }
1237
1238         /* Check dimmed rule */
1239         dimmed = _transfer_mode_enabled (win);
1240         if (dimmed)
1241                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1242
1243         return dimmed;
1244 }
1245
1246 gboolean
1247 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1248 {
1249         ModestDimmingRule *rule = NULL;
1250         TnyFolderType types[3];
1251         gboolean dimmed = FALSE;
1252
1253         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1254         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1255         rule = MODEST_DIMMING_RULE (user_data);
1256
1257         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1258         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1259         types[2] = TNY_FOLDER_TYPE_SENT;
1260
1261         /* Check dimmed rule */
1262         dimmed = _clipboard_is_empty (win);
1263         if (dimmed)
1264                 modest_dimming_rule_set_notification (rule,
1265                                                       _CS("ecoc_ib_edwin_nothing_to_paste"));
1266         if (!dimmed) {
1267                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1268                 if (dimmed)
1269                         modest_dimming_rule_set_notification (rule,
1270                                                               _CS("ckct_ib_unable_to_paste_here"));
1271         }
1272         if (!dimmed) {
1273                 dimmed = !_folder_view_has_focus (win);
1274                 if (dimmed)
1275                         modest_dimming_rule_set_notification (rule,
1276                                         _CS("ckct_ib_unable_to_paste_here"));
1277         }
1278         if (!dimmed) {
1279                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), TRUE);
1280                 if (dimmed)
1281                         modest_dimming_rule_set_notification (rule,
1282                                                               _CS("ckct_ib_unable_to_paste_here"));
1283         }
1284         if (!dimmed) {
1285                 dimmed = _selected_folder_is_same_as_source (win);
1286                 if (dimmed)
1287                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1288         }
1289         if (!dimmed) {
1290                 dimmed = _selected_folder_has_subfolder_with_same_name (win);
1291                 if (dimmed)
1292                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1293         }
1294
1295         return dimmed;
1296 }
1297
1298
1299 gboolean
1300 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1301 {
1302         ModestDimmingRule *rule = NULL;
1303         gboolean dimmed = FALSE;
1304         GtkWidget *focused = NULL;
1305
1306         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1307         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1308         rule = MODEST_DIMMING_RULE (user_data);
1309
1310         focused = gtk_window_get_focus (GTK_WINDOW (win));
1311
1312         /* Main window dimming rules */
1313         if (MODEST_IS_MAIN_WINDOW (win))
1314                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1315
1316         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1317                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1318
1319         if (!dimmed && GTK_IS_ENTRY (focused)) {
1320                 const gchar *current_text;
1321                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
1322                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
1323         }
1324
1325         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
1326                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1327                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
1328         }
1329
1330         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
1331                 dimmed = FALSE;
1332         return dimmed;
1333 }
1334
1335 gboolean
1336 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1337 {
1338         ModestDimmingRule *rule = NULL;
1339         gboolean dimmed = FALSE;
1340
1341         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1342         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1343         rule = MODEST_DIMMING_RULE (user_data);
1344
1345         /* Check dimmed rule */
1346         dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1347
1348         if (!dimmed) {
1349                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1350                 if (dimmed) {
1351                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1352                 }
1353         }
1354
1355         return dimmed;
1356 }
1357
1358 #ifdef MODEST_TOOLKIT_HILDON2
1359 static gboolean
1360 _not_valid_attachments (ModestWindow *win, gboolean save_not_remove)
1361 {
1362         gint n_attachments;
1363         TnyList *attachments;
1364         gboolean result = FALSE;
1365
1366         /* Get atachments */
1367         attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1368         n_attachments = tny_list_get_length (attachments);
1369
1370         /* Check unique */
1371         if (!result) {
1372                 result = n_attachments < 1;
1373         }
1374
1375         /* Check attached type (view operation not required) */
1376         if (!result)  {
1377                 gint n_valid = 0;
1378
1379                 TnyIterator *iter;
1380                 iter = tny_list_create_iterator (attachments);
1381                 while (!tny_iterator_is_done (iter)) {
1382                         gboolean is_valid = TRUE;
1383                         TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
1384                         TnyList *nested_list = tny_simple_list_new ();
1385                         tny_mime_part_get_parts (mime_part, nested_list);
1386
1387                         if (tny_mime_part_is_purged (mime_part)) {
1388                                 is_valid = FALSE;
1389                         }
1390
1391                         if (is_valid && modest_tny_mime_part_is_msg (mime_part)) {
1392                                 TnyMsg *window_msg;
1393                                 window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1394                                 if (window_msg) {
1395                                         if (save_not_remove && (TnyMimePart *) window_msg != mime_part) {
1396                                                 is_valid = FALSE;
1397                                         }
1398                                         g_object_unref (window_msg);
1399                                 }
1400                                 if (is_valid && save_not_remove && tny_list_get_length (nested_list) > 0) {
1401                                         is_valid = FALSE;
1402                                 }
1403                         }
1404                         g_object_unref (nested_list);
1405                         g_object_unref (mime_part);
1406                         tny_iterator_next (iter);
1407
1408                         if (is_valid)
1409                                 n_valid++;
1410                 }
1411                 g_object_unref (iter);
1412                 result = (n_valid == 0);
1413         }
1414         g_object_unref (attachments);
1415         return result;
1416
1417 }
1418 #endif
1419
1420 gboolean
1421 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1422 {
1423         ModestDimmingRule *rule = NULL;
1424         gboolean dimmed = FALSE;
1425
1426         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1427         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1428         rule = MODEST_DIMMING_RULE (user_data);
1429
1430         /* Check dimmed rule */
1431
1432 #ifdef MODEST_TOOLKIT_HILDON2
1433         dimmed = _not_valid_attachments (win, TRUE);
1434 #else
1435         dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1436
1437         if (!dimmed) {
1438                 dimmed = _purged_attach_selected (win, TRUE, NULL);
1439                 if (dimmed) {
1440                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1441                 }
1442         }
1443 #endif
1444         return dimmed;
1445 }
1446
1447 gboolean
1448 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1449 {
1450         ModestDimmingRule *rule = NULL;
1451         const DimmedState *state = NULL;
1452         gboolean dimmed = FALSE;
1453
1454         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1455         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1456         rule = MODEST_DIMMING_RULE (user_data);
1457         state = modest_window_get_dimming_state (win);
1458
1459         /* Check in main window if there's only one message selected */
1460         if (MODEST_IS_MAIN_WINDOW (win)) {
1461                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1462         }
1463
1464         /* Check in view window if there's any attachment selected */
1465         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1466                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1467                 if (dimmed)
1468                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1469         }
1470
1471         if (!dimmed) {
1472
1473                 dimmed = _selected_msg_sent_in_progress (win);
1474                 if (dimmed) {
1475                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1476                 }
1477         }
1478
1479         /* cannot purge in editable drafts nor pop folders */
1480         if (!dimmed) {
1481                 dimmed = _invalid_folder_for_purge (win, rule);
1482                 if (dimmed)
1483                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1484         }
1485
1486         /* Check if the selected message in main window has attachments */
1487         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1488                 dimmed = !(state->any_has_attachments);
1489                 if (dimmed)
1490                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1491         }
1492
1493         /* Check if all attachments are already purged */
1494         if (!dimmed) {
1495                 dimmed = _purged_attach_selected (win, TRUE, rule);
1496         }
1497
1498         /* Check if the message is already downloaded */
1499         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1500                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1501                 if (dimmed)
1502                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1503         }
1504
1505         return dimmed;
1506 }
1507
1508 gboolean
1509 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1510 {
1511         ModestDimmingRule *rule = NULL;
1512         gboolean dimmed = FALSE;
1513
1514         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1515         rule = MODEST_DIMMING_RULE (user_data);
1516
1517         /* Check dimmed rule */
1518         if (MODEST_IS_MAIN_WINDOW (win)) {
1519                 dimmed = _clipboard_is_empty (win);
1520                 if (dimmed)
1521                         modest_dimming_rule_set_notification (rule, "");
1522         }
1523
1524         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1525                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
1526         }
1527
1528         return dimmed;
1529 }
1530
1531 gboolean
1532 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
1533 {
1534         ModestDimmingRule *rule = NULL;
1535         gboolean dimmed = FALSE;
1536
1537         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1538         rule = MODEST_DIMMING_RULE (user_data);
1539
1540         /* Check dimmed rule */
1541         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
1542                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
1543         }
1544
1545         return dimmed;
1546 }
1547
1548 gboolean
1549 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1550 {
1551         ModestDimmingRule *rule = NULL;
1552         const DimmedState *state = NULL;
1553         gboolean dimmed = FALSE;
1554
1555         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1556         rule = MODEST_DIMMING_RULE (user_data);
1557         state = modest_window_get_dimming_state (win);
1558
1559         /* Check common dimming rules */
1560         dimmed = _invalid_clipboard_selected (win, rule);
1561
1562         /* Check window specific dimming rules */
1563         if (MODEST_IS_MAIN_WINDOW (win)) {
1564                 /* Get focused widget */
1565                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1566
1567                 if (MODEST_IS_HEADER_VIEW (focused)) {
1568                         if (!dimmed) {
1569                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1570                                 if (dimmed)
1571                                         modest_dimming_rule_set_notification (rule, "");
1572                         }
1573                         if (!dimmed) {
1574                                 dimmed = _selected_msg_sent_in_progress (win);
1575                                 if (dimmed)
1576                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1577                         }
1578                         if (!dimmed) {
1579                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1580                                 if(dimmed)
1581                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1582                         }
1583                 }
1584                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1585                         TnyFolderType types[3];
1586
1587                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1588                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1589                         types[2] = TNY_FOLDER_TYPE_SENT;
1590
1591                         /* Apply folder rules */
1592                         if (!dimmed) {
1593                                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
1594                                 if (dimmed)
1595                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1596                         }
1597                         if (!dimmed) {
1598                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1599                                 if (dimmed)
1600                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1601                         }
1602                         if (!dimmed) {
1603                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1604                                 if (dimmed)
1605                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1606                         }
1607                 }
1608         }
1609
1610         return dimmed;
1611 }
1612
1613 gboolean
1614 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1615 {
1616         ModestDimmingRule *rule = NULL;
1617         const DimmedState *state = NULL;
1618         gboolean dimmed = FALSE;
1619
1620         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1621         rule = MODEST_DIMMING_RULE (user_data);
1622         state = modest_window_get_dimming_state (win);
1623
1624         /* Check common dimming rules */
1625         dimmed = _invalid_clipboard_selected (win, rule);
1626
1627         /* Check window specific dimming rules */
1628         if (MODEST_IS_MAIN_WINDOW (win)) {
1629                 /* Get focused widget */
1630                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1631
1632                 if (MODEST_IS_HEADER_VIEW (focused)) {
1633                         if (!dimmed) {
1634                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1635                                 if (dimmed)
1636                                         modest_dimming_rule_set_notification (rule, "");
1637                         }
1638                         if (!dimmed) {
1639                                 dimmed = _selected_msg_sent_in_progress (win);
1640                                 if (dimmed)
1641                                         modest_dimming_rule_set_notification (rule, _(""));
1642                         }
1643                         if (!dimmed) {
1644                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1645                                 if(dimmed)
1646                                         modest_dimming_rule_set_notification (rule, _(""));
1647                         }
1648                 }
1649                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1650                         TnyFolderType types[3];
1651
1652                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1653                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1654                         types[2] = TNY_FOLDER_TYPE_SENT;
1655
1656                         if (!dimmed) {
1657                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1658                                 if (dimmed)
1659                                         modest_dimming_rule_set_notification (rule, _(""));
1660                         }
1661                         if (!dimmed) {
1662                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1663                                 if (dimmed)
1664                                         modest_dimming_rule_set_notification (rule, _(""));
1665                         }
1666                 }
1667         }
1668
1669         return dimmed;
1670 }
1671
1672 gboolean
1673 modest_ui_dimming_rules_on_set_style (ModestWindow *win, gpointer user_data)
1674 {
1675         ModestDimmingRule *rule = NULL;
1676         const DimmedState *state = NULL;
1677         gboolean dimmed = FALSE;
1678
1679         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1680         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1681         rule = MODEST_DIMMING_RULE (user_data);
1682         state = modest_window_get_dimming_state (win);
1683
1684
1685         /* Check common dimming rules */
1686         ModestMsgEditFormat format;
1687         format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1688
1689         dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
1690         if (dimmed)
1691                 modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
1692
1693         if (!dimmed) {
1694                 GtkWidget *body;
1695                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1696                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1697
1698                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1699                 if (dimmed)
1700                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1701         }
1702
1703
1704         return dimmed;
1705 }
1706
1707 gboolean
1708 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
1709 {
1710         ModestDimmingRule *rule = NULL;
1711         const DimmedState *state = NULL;
1712         gboolean dimmed = FALSE;
1713
1714         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1715         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1716         rule = MODEST_DIMMING_RULE (user_data);
1717         state = modest_window_get_dimming_state (win);
1718
1719         GtkWidget *body;
1720         body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1721                                                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1722
1723         dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1724         if (dimmed)
1725                 modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1726
1727         return dimmed;
1728 }
1729
1730 gboolean
1731 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1732 {
1733         ModestDimmingRule *rule = NULL;
1734         const DimmedState *state = NULL;
1735         gboolean dimmed = FALSE;
1736         GtkWidget *focused = NULL;
1737
1738         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1739         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1740         rule = MODEST_DIMMING_RULE (user_data);
1741         state = modest_window_get_dimming_state (win);
1742
1743         focused = gtk_window_get_focus (GTK_WINDOW (win));
1744
1745         dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1746
1747         if (!dimmed) {
1748                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1749         }
1750
1751         if (!dimmed) {
1752                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1753                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1754
1755                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1756                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1757         }
1758
1759         return dimmed;
1760 }
1761
1762 gboolean
1763 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1764 {
1765         ModestDimmingRule *rule = NULL;
1766         const DimmedState *state = NULL;
1767         gboolean dimmed = FALSE;
1768         TnyList *selected_attachments = NULL;
1769         gint n_att_selected = 0;
1770         GtkWidget *attachments_view;
1771
1772         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1773         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1774         rule = MODEST_DIMMING_RULE (user_data);
1775         state = modest_window_get_dimming_state (win);
1776
1777         attachments_view = modest_msg_edit_window_get_child_widget (
1778                                                                     MODEST_MSG_EDIT_WINDOW (win),
1779                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1780
1781 #ifdef MODEST_TOOLKIT_HILDON2
1782         selected_attachments = modest_attachments_view_get_attachments (
1783                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1784 #else
1785         selected_attachments = modest_attachments_view_get_selection (
1786                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1787 #endif
1788         n_att_selected = tny_list_get_length (selected_attachments);
1789         g_object_unref (selected_attachments);
1790
1791         dimmed = (n_att_selected < 1);
1792
1793         return dimmed;
1794 }
1795
1796 gboolean
1797 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1798 {
1799         ModestDimmingRule *rule = NULL;
1800         const DimmedState *state = NULL;
1801         gboolean dimmed = FALSE;
1802         GtkWidget *subject_field, *body_field;
1803         const gchar *subject = NULL;
1804
1805         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1806         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1807         rule = MODEST_DIMMING_RULE (user_data);
1808         state = modest_window_get_dimming_state (win);
1809
1810         body_field = modest_msg_edit_window_get_child_widget (
1811                                                               MODEST_MSG_EDIT_WINDOW (win),
1812                                                               MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1813         subject_field = modest_msg_edit_window_get_child_widget (
1814                                                                  MODEST_MSG_EDIT_WINDOW (win),
1815                                                                  MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_SUBJECT);
1816         subject = gtk_entry_get_text (GTK_ENTRY (subject_field));
1817
1818         dimmed = (subject == NULL || subject[0] == '\0');
1819         if (dimmed)
1820                 modest_dimming_rule_set_notification (rule, _("mcen_ib_subject_not_modified"));
1821
1822         if (!dimmed) {
1823                 GtkWidget *to_field, *cc_field, *bcc_field;
1824                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1825                 cc_field = modest_msg_edit_window_get_child_widget (
1826                         MODEST_MSG_EDIT_WINDOW (win),
1827                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1828                 to_field = modest_msg_edit_window_get_child_widget (
1829                         MODEST_MSG_EDIT_WINDOW (win),
1830                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1831                 bcc_field = modest_msg_edit_window_get_child_widget (
1832                         MODEST_MSG_EDIT_WINDOW (win),
1833                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1834                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1835                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1836                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1837
1838                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1839                            gtk_text_buffer_get_char_count (cc_buffer) +
1840                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1841                 if (dimmed)
1842                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1843         }
1844
1845         return dimmed;
1846 }
1847
1848 gboolean
1849 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1850 {
1851         ModestDimmingRule *rule = NULL;
1852         gboolean dimmed = FALSE;
1853
1854         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1855         rule = MODEST_DIMMING_RULE (user_data);
1856
1857         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1858
1859         /* Check dimmed rule */
1860         dimmed = _transfer_mode_enabled (win);
1861         if (dimmed)
1862                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1863
1864         if (!dimmed) {
1865                 dimmed = modest_msg_view_window_first_message_selected (
1866                                 MODEST_MSG_VIEW_WINDOW(win));
1867                 modest_dimming_rule_set_notification (rule, NULL);
1868         }
1869
1870         return dimmed;
1871 }
1872
1873 gboolean
1874 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1875 {
1876         ModestDimmingRule *rule = NULL;
1877         gboolean dimmed = FALSE;
1878
1879         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1880         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1881         rule = MODEST_DIMMING_RULE (user_data);
1882
1883         /* Check dimmed rule */
1884         dimmed = _transfer_mode_enabled (win);
1885         if (dimmed)
1886                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1887
1888         if (!dimmed) {
1889                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1890                 modest_dimming_rule_set_notification (rule, NULL);
1891         }
1892
1893         return dimmed;
1894 }
1895
1896
1897 gboolean
1898 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1899 {
1900         gboolean dimmed;
1901         ModestAccountMgr *mgr;
1902
1903         mgr = modest_runtime_get_account_mgr();
1904         dimmed = !modest_account_mgr_has_accounts(mgr, TRUE);
1905
1906         /* Dimm it if we only have metaaccounts */
1907         if (!dimmed) {
1908                 ModestProtocolRegistry *reg = modest_runtime_get_protocol_registry ();
1909                 GSList *account_names = modest_account_mgr_account_names (mgr, TRUE);
1910
1911                 if (account_names) {
1912                         ModestProtocolType store_protocol;
1913                         gboolean found = FALSE;
1914                         GSList *iter = account_names;
1915                         const gchar *tag = MODEST_PROTOCOL_REGISTRY_MULTI_MAILBOX_PROVIDER_PROTOCOLS;
1916
1917                         while (iter && !found) {
1918                                 gchar* account_name;
1919
1920                                 account_name = (gchar *) iter->data;
1921                                 store_protocol = modest_account_mgr_get_store_protocol (mgr, account_name);
1922
1923                                 if (!modest_protocol_registry_protocol_type_has_tag (reg, store_protocol, tag))
1924                                         found = TRUE;
1925                                 else
1926                                         iter = g_slist_next (iter);
1927                         }
1928                         modest_account_mgr_free_account_names (account_names);
1929                         dimmed = !found;
1930                 }
1931         }
1932
1933         return dimmed;
1934 }
1935
1936 gboolean
1937 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1938 {
1939         ModestDimmingRule *rule = NULL;
1940         TnyFolderType types[1];
1941         const DimmedState *state = NULL;
1942         gboolean dimmed = FALSE;
1943
1944         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1945         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1946         rule = MODEST_DIMMING_RULE (user_data);
1947         state = modest_window_get_dimming_state (win);
1948
1949         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1950
1951         /* Check dimmed rules */
1952         dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1953         if (dimmed)
1954                 modest_dimming_rule_set_notification (rule, "");
1955         if (!dimmed) {
1956                 dimmed = !state->sent_in_progress;
1957                 if (dimmed)
1958                         modest_dimming_rule_set_notification (rule, "");
1959         }
1960
1961         return dimmed;
1962 }
1963
1964 gboolean
1965 modest_ui_dimming_rules_on_cancel_sending_all (ModestWindow *win, gpointer user_data)
1966 {
1967         /* We dim if no msg send is in progress (and then cancelling send all has no
1968          * effect */
1969         return !_msgs_send_in_progress ();
1970 }
1971
1972 gboolean
1973 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1974 {
1975         ModestDimmingRule *rule = NULL;
1976         gboolean dimmed = FALSE;
1977         ModestAccountMgr *mgr;
1978         const gchar* account_name;
1979
1980         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1981         rule = MODEST_DIMMING_RULE (user_data);
1982         mgr = modest_runtime_get_account_mgr();
1983
1984         /* Check dimmed rule */
1985         account_name = modest_window_get_active_account (win);
1986
1987         if (account_name)
1988                 dimmed = modest_account_mgr_account_is_busy (mgr, account_name);
1989         else
1990                 dimmed = TRUE;
1991
1992         if (dimmed)
1993                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1994
1995         return dimmed;
1996 }
1997
1998 gboolean
1999 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
2000 {
2001         ModestDimmingRule *rule = NULL;
2002         gboolean dimmed = FALSE;
2003
2004         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2005         rule = MODEST_DIMMING_RULE (user_data);
2006
2007         /* Check dimmed rule */
2008         GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
2009         if (g_slist_length (account_names) < 1)
2010                 dimmed = TRUE;
2011         if (dimmed)
2012                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
2013
2014         modest_account_mgr_free_account_names (account_names);
2015
2016         if (!dimmed) {
2017                 dimmed = _send_receive_in_progress (win);
2018         }
2019
2020         return dimmed;
2021 }
2022
2023 #ifdef MODEST_TOOLKIT_HILDON2
2024 gboolean
2025 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2026 {
2027         TnyMsg *msg;
2028         GSList *recipients, *node;
2029         gboolean has_recipients_to_add;
2030
2031         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2032         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
2033
2034         msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2035
2036         /* Message is loaded asynchronously, so this could happen */
2037         if (!msg) {
2038 #ifdef MODEST_TOOLKIT_HILDON2
2039                 TnyHeader *header;
2040
2041                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
2042                 if (!header)
2043                         return TRUE;
2044
2045                 recipients = modest_tny_msg_header_get_all_recipients_list (header);
2046                 g_object_unref (header);
2047 #else
2048                 return TRUE;
2049 #endif
2050         } else {
2051                 recipients = modest_tny_msg_get_all_recipients_list (msg);
2052                 g_object_unref (msg);
2053         }
2054
2055         has_recipients_to_add = FALSE;
2056         for (node = recipients; node != NULL; node = g_slist_next (node)) {
2057                 if (!modest_address_book_has_address ((const gchar *) node->data)) {
2058                         has_recipients_to_add = TRUE;
2059                         break;
2060                 }
2061         }
2062
2063         g_slist_foreach (recipients, (GFunc) g_free, NULL);
2064         g_slist_free (recipients);
2065
2066         return !has_recipients_to_add;
2067 }
2068 #else
2069 gboolean
2070 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2071 {
2072         ModestDimmingRule *rule = NULL;
2073         gboolean dimmed = FALSE;
2074         GtkWidget *focused = NULL;
2075
2076         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2077         rule = MODEST_DIMMING_RULE (user_data);
2078         focused = gtk_window_get_focus (GTK_WINDOW (win));
2079
2080         dimmed = !focused;
2081
2082         if (!dimmed) {
2083                 gchar *selection = NULL;
2084                 if (GTK_IS_TEXT_VIEW (focused)) {
2085                         GtkTextIter start, end;
2086                         GtkTextBuffer *buffer = NULL;
2087                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2088                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
2089                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2090                         }
2091                 } else if (GTK_IS_LABEL (focused)) {
2092                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
2093                 } else {
2094                         gboolean do_check = TRUE;
2095                         GtkClipboard *clipboard;
2096                         if (GTK_IS_HTML (focused)) {
2097                                 const gchar *sel;
2098                                 int len = -1;
2099                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2100                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
2101                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2102                                 do_check = FALSE;
2103                         }
2104                         if (do_check) {
2105                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2106                                 selection = gtk_clipboard_wait_for_text (clipboard);
2107                         } else {
2108                                 selection = NULL;
2109                         }
2110                 }
2111                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
2112         }
2113
2114         return dimmed;
2115 }
2116 #endif
2117
2118 /* *********************** static utility functions ******************** */
2119
2120
2121 static gboolean
2122 _selected_folder_not_writeable (ModestMainWindow *win,
2123                                 gboolean for_paste)
2124 {
2125         GtkWidget *folder_view = NULL;
2126         TnyFolderStore *parent_folder = NULL;
2127         ModestEmailClipboard *clipboard = NULL;
2128         ModestTnyFolderRules rules;
2129         gboolean is_local_acc = FALSE;
2130         gboolean xfer_folders = FALSE;
2131         gboolean result = FALSE;
2132
2133         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2134
2135         /* Get folder view */
2136         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2137                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2138         /* If no folder view, always dimmed */
2139         if (!folder_view)
2140                 return TRUE;
2141
2142         /* Get selected folder as parent of new folder to create */
2143         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2144         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2145                 /* If it's the local account and its transfering folders, then do not dim */
2146                 if (TNY_IS_ACCOUNT (parent_folder)) {
2147                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
2148                         if (for_paste) {
2149                                 clipboard = modest_runtime_get_email_clipboard ();
2150                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
2151                         }
2152                 }
2153
2154                 if (for_paste)
2155                         result = !(is_local_acc && xfer_folders);
2156                 else
2157                         result = !is_local_acc;
2158                 goto frees;
2159         }
2160
2161         /* Check dimmed rule */
2162         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2163         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
2164
2165         /* free */
2166  frees:
2167         if (parent_folder != NULL)
2168                 g_object_unref (parent_folder);
2169
2170         return result;
2171 }
2172
2173 static gboolean
2174 _selected_folder_not_deletable (ModestMainWindow *win)
2175 {
2176         GtkWidget *folder_view = NULL;
2177         TnyFolderStore *parent_folder = NULL;
2178         ModestTnyFolderRules rules;
2179         gboolean result = FALSE;
2180
2181         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2182
2183         /* Get folder view */
2184         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2185                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2186         /* If no folder view, always dimmed */
2187         if (!folder_view)
2188                 return TRUE;
2189
2190         /* Get selected folder as parent of new folder to create */
2191         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2192         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2193                 result = TRUE;
2194                 goto frees;
2195         }
2196
2197         /* Check dimmed rule */
2198         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2199         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
2200
2201         /* free */
2202  frees:
2203         if (parent_folder != NULL)
2204                 g_object_unref (parent_folder);
2205
2206         return result;
2207 }
2208
2209 static gboolean
2210 _selected_folder_not_moveable (ModestMainWindow *win)
2211 {
2212         GtkWidget *folder_view = NULL;
2213         TnyFolderStore *parent_folder = NULL;
2214         ModestTnyFolderRules rules;
2215         gboolean result = FALSE;
2216
2217         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2218
2219         /* Get folder view */
2220         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2221                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2222         /* If no folder view, always dimmed */
2223         if (!folder_view)
2224                 return TRUE;
2225
2226         /* Get selected folder as parent of new folder to create */
2227         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2228         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2229                 result = TRUE;
2230                 goto frees;
2231         }
2232
2233         /* Check dimmed rule */
2234         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2235         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
2236
2237         /* free */
2238  frees:
2239         if (parent_folder != NULL)
2240                 g_object_unref (parent_folder);
2241
2242         return result;
2243 }
2244
2245 static gboolean
2246 _selected_folder_not_renameable (ModestMainWindow *win)
2247 {
2248         GtkWidget *folder_view = NULL;
2249         TnyFolderStore *parent_folder = NULL;
2250         ModestTnyFolderRules rules;
2251         gboolean result = FALSE;
2252
2253         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2254
2255         /* Get folder view */
2256         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2257                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2258         /* If no folder view, always dimmed */
2259         if (!folder_view)
2260                 return TRUE;
2261
2262         /* Get selected folder as parent of new folder to create */
2263         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2264         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2265                 result = TRUE;
2266                 goto frees;
2267         }
2268
2269         /* Check dimmed rule */
2270         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2271         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
2272
2273         /* free */
2274  frees:
2275         if (parent_folder != NULL)
2276                 g_object_unref (parent_folder);
2277
2278         return result;
2279 }
2280
2281 static gboolean
2282 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2283 {
2284         TnyFolderType types[2];
2285         gboolean result = FALSE;
2286
2287         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2288
2289         types[0] = TNY_FOLDER_TYPE_ROOT;
2290         types[1] = TNY_FOLDER_TYPE_INBOX;
2291
2292         /* Check folder type */
2293         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2294
2295         /* Check pop and MMC accounts */
2296         if (!result) {
2297                 result = _selected_folder_is_root (win);
2298         }
2299
2300         return result;
2301 }
2302
2303
2304 static gboolean
2305 _selected_folder_is_root (ModestMainWindow *win)
2306 {
2307         TnyFolderType types[1];
2308         gboolean result = FALSE;
2309
2310         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2311
2312         /* All accounts are root items: */
2313         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2314                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2315         if (folder_view) {
2316                 gboolean is_account = FALSE;
2317                 TnyFolderStore *folder_store =
2318                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2319                 if (folder_store) {
2320                         is_account = TNY_IS_ACCOUNT (folder_store);
2321
2322                         g_object_unref (folder_store);
2323                         folder_store = NULL;
2324                 }
2325
2326                 if (is_account)
2327                         return TRUE;
2328         }
2329
2330         /* Try something more precise: */
2331         types[0] = TNY_FOLDER_TYPE_ROOT;
2332
2333         /* Check folder type */
2334         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2335
2336         return result;
2337 }
2338
2339 static gboolean
2340 _header_view_is_all_selected (ModestMainWindow *win)
2341 {
2342         const DimmedState *state = NULL;
2343
2344         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2345
2346         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2347
2348         return state->all_selected;
2349 }
2350
2351 static gboolean
2352 _selected_folder_is_empty (ModestMainWindow *win)
2353 {
2354         GtkWidget *folder_view = NULL, *header_view = NULL;
2355         TnyFolderStore *folder = NULL;
2356         gboolean result = FALSE;
2357
2358         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2359
2360         /* Get folder view */
2361         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2362                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2363
2364         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2365                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2366
2367         /* If no folder view, always dimmed */
2368         if (!folder_view || !header_view)
2369                 return TRUE;
2370
2371         /* Get selected folder as parent of new folder to create */
2372         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2373         if (!(folder && TNY_IS_FOLDER(folder))) {
2374                 if (folder)
2375                         g_object_unref (folder);
2376                 return TRUE;
2377         }
2378
2379         /* Check folder type */
2380         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2381             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2382                 result = TRUE;
2383
2384         /* free */
2385         g_object_unref (folder);
2386
2387         return result;
2388 }
2389
2390 static gboolean
2391 _folder_view_has_focus (ModestWindow *win)
2392 {
2393         GtkWidget *folder_view = NULL;
2394
2395         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2396
2397         /* Get folder view */
2398         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2399                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2400         if (!folder_view)
2401                 return FALSE;
2402
2403         if (gtk_widget_is_focus(folder_view))
2404                 return TRUE;
2405
2406         return FALSE;
2407 }
2408
2409 static gboolean
2410 _selected_folder_is_same_as_source (ModestWindow *win)
2411 {
2412         ModestEmailClipboard *clipboard = NULL;
2413         GtkWidget *folder_view = NULL;
2414         TnyFolderStore *folder = NULL;
2415         gboolean result = FALSE;
2416
2417         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2418
2419         /* Get folder view */
2420         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2421                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2422         if (!folder_view)
2423                 return FALSE;
2424
2425         /* Get selected folder as destination folder */
2426         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2427         if (!(folder && TNY_IS_FOLDER(folder))) {
2428                 result = FALSE;
2429                 goto frees;
2430         }
2431
2432         /* Check clipboard is cleared */
2433         clipboard = modest_runtime_get_email_clipboard ();
2434         if (modest_email_clipboard_cleared (clipboard)) {
2435                 result = FALSE;
2436                 goto frees;
2437         }
2438
2439         /* Check source folder */
2440         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2441
2442         /* Free */
2443  frees:
2444         g_object_unref (folder);
2445
2446         return result;
2447 }
2448
2449 static gboolean
2450 _selected_folder_is_any_of_type (ModestWindow *win,
2451                                  TnyFolderType types[],
2452                                  guint ntypes)
2453 {
2454         GtkWidget *folder_view = NULL;
2455         TnyFolderStore *folder = NULL;
2456         TnyFolderType folder_type;
2457         guint i=0;
2458         gboolean result = FALSE;
2459
2460         /*Get current folder */
2461         if (MODEST_IS_MAIN_WINDOW(win)) {
2462
2463                 /* Get folder view */
2464                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2465                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2466                 /* If no folder view, always dimmed */
2467                 if (!folder_view)
2468                         return FALSE;
2469
2470                 /* Get selected folder as parent of new folder to create */
2471                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2472
2473                 if (!(folder && TNY_IS_FOLDER(folder))) {
2474                         if (folder)
2475                                 g_object_unref (folder);
2476                         return FALSE;
2477                 }
2478
2479                 /* Check folder type */
2480                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2481         }
2482         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2483                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2484                 for (i=0; i < ntypes; i++) {
2485                         result = result || folder_type == types[i];
2486                 }
2487         }
2488
2489
2490         /* free */
2491         if (folder)
2492                 g_object_unref (folder);
2493
2494         return result;
2495 }
2496
2497 static gboolean
2498 _folder_is_any_of_type (TnyFolder *folder,
2499                         TnyFolderType types[],
2500                         guint ntypes)
2501 {
2502         TnyFolderType folder_type;
2503         gboolean result = FALSE;
2504         guint i;
2505
2506         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2507
2508         /* Get folder type */
2509         folder_type = modest_tny_folder_guess_folder_type (folder);
2510         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2511                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2512
2513         /* Check foler type */
2514         for (i=0; i < ntypes; i++) {
2515                 result = result || folder_type == types[i];
2516         }
2517
2518         return result;
2519 }
2520
2521 static gboolean
2522 _clipboard_is_empty (ModestWindow *win)
2523 {
2524         gboolean result = FALSE;
2525
2526         if (MODEST_IS_MAIN_WINDOW (win)) {
2527                 ModestEmailClipboard *clipboard = NULL;
2528                 clipboard = modest_runtime_get_email_clipboard ();
2529                 if (modest_email_clipboard_cleared (clipboard))
2530                  result = TRUE;
2531         }
2532
2533         return result;
2534 }
2535
2536 static gboolean
2537 _invalid_clipboard_selected (ModestWindow *win,
2538                              ModestDimmingRule *rule)
2539 {
2540         const DimmedState *state = NULL;
2541         gboolean result = FALSE;
2542         GtkWidget *focused = NULL;
2543
2544         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2545         state = modest_window_get_dimming_state (win);
2546         /* Get focuesed widget */
2547         focused = gtk_window_get_focus (GTK_WINDOW (win));
2548
2549         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2550                 gboolean has_selection = FALSE;
2551                 if (GTK_IS_TEXT_VIEW (focused)) {
2552                         GtkTextBuffer *buffer = NULL;
2553                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2554                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2555                 } else if (GTK_IS_EDITABLE (focused)) {
2556                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2557                 }
2558                 result = !has_selection;
2559         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2560                 if (focused) {
2561                         MODEST_DEBUG_BLOCK (g_message ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2562                         if (GTK_IS_LABEL (focused) &&
2563                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2564                                 result = TRUE;
2565                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2566                                 GtkTextBuffer *buffer;
2567                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2568                                 result = !gtk_text_buffer_get_has_selection (buffer);
2569                         } else if (GTK_IS_HTML (focused)) {
2570                                 const gchar *sel;
2571                                 int len = -1;
2572                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2573                                 result = ((sel == NULL) || (sel[0] == '\0'));
2574                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2575                                 result = TRUE;
2576                         } else {
2577                                 GtkClipboard *clipboard;
2578                                 gchar *selection;
2579
2580                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2581                                 /* Get clipboard selection*/
2582                                 selection = gtk_clipboard_wait_for_text (clipboard);
2583                                 /* Check dimming */
2584                                 result = (selection == NULL);
2585                                 g_free (selection);
2586                         }
2587                 } else {
2588                         result = TRUE;
2589                 }
2590
2591                 if (result)
2592                         modest_dimming_rule_set_notification (rule, "");
2593
2594         }
2595         else if (MODEST_IS_MAIN_WINDOW (win)) {
2596                 /* Check dimming */
2597                 result = state->n_selected == 0;
2598                 if (result)
2599                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2600         }
2601
2602         return result;
2603 }
2604
2605
2606 static gboolean
2607 _invalid_attach_selected (ModestWindow *win,
2608                           gboolean unique,
2609                           gboolean for_view,
2610                           gboolean for_remove,
2611                           ModestDimmingRule *rule)
2612 {
2613         TnyList *attachments;
2614         gint n_selected;
2615         TnyHeaderFlags flags;
2616         gboolean nested_attachments = FALSE;
2617         gboolean selected_messages = FALSE;
2618         const DimmedState *state = NULL;
2619         gboolean result = FALSE;
2620
2621         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2622         state = modest_window_get_dimming_state (win);
2623
2624         if (MODEST_IS_MAIN_WINDOW (win)) {
2625                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2626                 if (!result)
2627                         result = !state->any_has_attachments;
2628         }
2629         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2630
2631                 /* Get selected atachments */
2632                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2633                 n_selected = tny_list_get_length (attachments);
2634
2635                 /* Check unique */
2636                 if (!result) {
2637                         if (unique)
2638                                 result = n_selected != 1;
2639                         else
2640
2641                                 result = n_selected < 1;
2642                 }
2643
2644                 /* Check attached type (view operation not required) */
2645                 if (!result && !for_view)  {
2646                         TnyIterator *iter;
2647                         iter = tny_list_create_iterator (attachments);
2648                         while (!tny_iterator_is_done (iter) && !result) {
2649 #ifdef MODEST_TOOLKIT_HILDON2
2650                                 gboolean not_selectable = FALSE;
2651 #endif
2652                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2653                                 TnyList *nested_list = tny_simple_list_new ();
2654                                 tny_mime_part_get_parts (mime_part, nested_list);
2655
2656                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2657                                         TnyMsg *window_msg;
2658                                         window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2659                                         if ((TnyMimePart *) window_msg != mime_part) {
2660                                                 selected_messages = TRUE;
2661 #ifdef MODEST_TOOLKIT_HILDON2
2662                                                 not_selectable = TRUE;
2663 #else
2664                                                 result = TRUE;
2665 #endif
2666                                         }
2667                                         g_object_unref (window_msg);
2668                                 }
2669                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2670                                         nested_attachments = TRUE;
2671 #ifdef MODEST_TOOLKIT_HILDON2
2672                                         not_selectable = TRUE;
2673 #else
2674                                         result = TRUE;
2675 #endif
2676                                 }
2677 #ifdef MODEST_TOOLKIT_HILDON2
2678                                 if (not_selectable)
2679                                         n_selected --;
2680 #endif
2681                                 g_object_unref (nested_list);
2682                                 g_object_unref (mime_part);
2683                                 tny_iterator_next (iter);
2684                         }
2685                         g_object_unref (iter);
2686                 }
2687
2688                 /* No valid attachment available */
2689                 if (n_selected == 0)
2690                         result = TRUE;
2691
2692                 /* Set notifications */
2693                 if (result && rule != NULL) {
2694                         if (selected_messages) {
2695                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2696                         } else if (nested_attachments) {
2697                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2698                         } else if (n_selected == 0) {
2699                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2700                         } else if (unique) {
2701                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2702                         }
2703                 }
2704
2705                 /* Free */
2706                 g_object_unref (attachments);
2707         }
2708
2709         return result;
2710 }
2711
2712 static gboolean
2713 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2714 {
2715         TnyList *attachments = NULL;
2716         TnyIterator *iter;
2717         gint purged = 0;
2718         gint n_attachments = 0;
2719         gboolean result = FALSE;
2720
2721         /* This should check if _all_ the attachments are already purged. If only some
2722          * of them are purged, then it does not cause dim as there's a confirmation dialog
2723          * for removing only local attachments */
2724
2725         /* Get selected atachments */
2726         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2727                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2728         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2729                 /* If we're in main window, we won't know if there are already purged attachments */
2730                 return FALSE;
2731         }
2732
2733         if (attachments == NULL)
2734                 return FALSE;
2735
2736         if (tny_list_get_length (attachments) == 0) {
2737                 g_object_unref (attachments);
2738                 return FALSE;
2739         }
2740
2741         iter = tny_list_create_iterator (attachments);
2742         while (!tny_iterator_is_done (iter)) {
2743                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2744                 if (tny_mime_part_is_purged (mime_part)) {
2745                         purged++;
2746                 }
2747                 n_attachments++;
2748                 g_object_unref (mime_part);
2749                 tny_iterator_next (iter);
2750         }
2751         g_object_unref (iter);
2752
2753         /* Free */
2754         g_object_unref (attachments);
2755
2756         if (all)
2757                 result = (purged == n_attachments);
2758         else
2759                 result = (purged > 0);
2760
2761         /* This string no longer exists, refer to NB#75415 for more info
2762         if (result && (rule != NULL))
2763                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2764         */
2765
2766         return result;
2767 }
2768
2769 static gboolean
2770 _invalid_msg_selected (ModestMainWindow *win,
2771                        gboolean unique,
2772                        ModestDimmingRule *rule)
2773 {
2774         GtkWidget *folder_view = NULL;
2775         const DimmedState *state = NULL;
2776         gboolean result = FALSE;
2777
2778         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2779         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2780         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2781
2782         /* Get folder view to check focus */
2783         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2784                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2785
2786         /* Check dimmed rule (TODO: check focus on widgets */
2787         if (!result) {
2788                 result = ((state->n_selected == 0 ) ||
2789                           (gtk_widget_is_focus (folder_view)));
2790                 if (result)
2791                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2792         }
2793         if (!result && unique) {
2794                 result = state->n_selected > 1;
2795                 if (result)
2796                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2797         }
2798
2799         return result;
2800 }
2801
2802
2803 static gboolean
2804 _msg_download_in_progress (ModestWindow *win)
2805 {
2806         gboolean result = FALSE;
2807
2808         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2809
2810         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2811                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2812         }
2813         else if (MODEST_IS_MAIN_WINDOW (win)) {
2814                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2815         }
2816
2817         return result;
2818 }
2819
2820 static gboolean
2821 _msg_download_completed (ModestMainWindow *win)
2822 {
2823         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2824         return state->any_marked_as_cached;
2825 }
2826
2827 static void
2828 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2829 {
2830         GSList **send_queues = (GSList **) userdata;
2831         *send_queues = g_slist_prepend (*send_queues, value);
2832 }
2833
2834 static gboolean
2835 _selected_msg_sent_in_progress (ModestWindow *win)
2836 {
2837         const DimmedState *state = modest_window_get_dimming_state (win);
2838         return state->sent_in_progress;
2839 }
2840
2841
2842 static gboolean
2843 _invalid_folder_for_purge (ModestWindow *win,
2844                            ModestDimmingRule *rule)
2845 {
2846         TnyFolder *folder = NULL;
2847         TnyAccount *account = NULL;
2848         gboolean result = FALSE;
2849
2850         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2851
2852                 /* Get folder and account of message */
2853                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2854                 g_return_val_if_fail(msg != NULL, TRUE);
2855                 folder = tny_msg_get_folder (msg);
2856                 g_object_unref (msg);
2857                 if (folder == NULL) {
2858                         result = TRUE;
2859                         goto frees;
2860                 }
2861         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2862                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2863                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2864                 if (!folder_view)
2865                         return FALSE;
2866                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2867                 /* Could be a folder store */
2868                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2869                         goto frees;
2870         } else {
2871                 g_return_val_if_reached (FALSE);
2872         }
2873         account = modest_tny_folder_get_account (folder);
2874         if (account == NULL) goto frees;
2875
2876         /* Check account */
2877         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2878                 TnyFolderType types[2];
2879                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2880                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2881
2882                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2883                         result = TRUE;
2884                 }
2885         } else {
2886                 ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (account));
2887                 /* If it's a remote folder then dim */
2888                 if (modest_protocol_registry_protocol_type_has_tag (modest_runtime_get_protocol_registry (),
2889                                                                     protocol_type,
2890                                                                     MODEST_PROTOCOL_REGISTRY_REMOTE_STORE_PROTOCOLS)) {
2891                         result = TRUE;
2892                 }
2893         }
2894
2895 frees:
2896         if (folder != NULL)
2897                 g_object_unref (folder);
2898         if (account != NULL)
2899                 g_object_unref (account);
2900
2901         return result;
2902 }
2903
2904 static gboolean
2905 _transfer_mode_enabled (ModestWindow *win)
2906 {
2907         gboolean result = FALSE;
2908
2909         /* Check dimming */
2910         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2911                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2912         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2913                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2914 #ifdef MODEST_TOOLKIT_HILDON2
2915         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
2916                 result = modest_folder_window_transfer_mode_enabled (MODEST_FOLDER_WINDOW (win));
2917         } else if (MODEST_IS_HEADER_WINDOW (win)) {
2918                 result = modest_header_window_transfer_mode_enabled (MODEST_HEADER_WINDOW (win));
2919 #endif
2920         } else {
2921                 g_warning("_transfer_mode_enabled called with wrong window type");
2922         }
2923
2924         return result;
2925 }
2926
2927 static gboolean
2928 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2929 {
2930         GtkWidget *folder_view = NULL;
2931         TnyFolderStore *folder = NULL;
2932         ModestEmailClipboard *clipboard = NULL;
2933         const gchar *folder_name = NULL;
2934         gboolean result = FALSE;
2935
2936         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
2937
2938         /*Get current parent folder */
2939         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2940                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2941         /* If no folder view, always dimmed */
2942         if (!folder_view) return FALSE;
2943
2944         /* Get selected folder as parent of new folder to create */
2945         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2946         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
2947
2948         /* get modest clipboard and source folder */
2949         clipboard = modest_runtime_get_email_clipboard ();
2950         folder_name = modest_email_clipboard_get_folder_name (clipboard);
2951         if (folder_name == NULL) goto frees;
2952
2953         /* Check source subfolders names */
2954         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
2955                                                             TRUE);
2956
2957         /* Free */
2958  frees:
2959         if (folder != NULL)
2960                 g_object_unref (folder);
2961
2962
2963         return result;
2964 }
2965
2966 static gboolean
2967 _all_msgs_in_sending_status (ModestHeaderView *header_view)
2968 {
2969         GtkTreeModel *model;
2970         GtkTreeIter iter;
2971         gboolean all_sending = TRUE;
2972
2973         model = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
2974         if (gtk_tree_model_get_iter_first (model, &iter)) {
2975                 do {
2976                         TnyHeader *header;
2977
2978                         gtk_tree_model_get (model, &iter,
2979                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
2980                                             &header,
2981                                             -1);
2982
2983                         if (header) {
2984                                 if (modest_tny_all_send_queues_get_msg_status (header) !=
2985                                     MODEST_TNY_SEND_QUEUE_SENDING)
2986                                         all_sending = FALSE;
2987                                 g_object_unref (header);
2988                         }
2989
2990                 } while (all_sending && gtk_tree_model_iter_next (model, &iter));
2991         }
2992         return all_sending;
2993 }
2994
2995 gboolean
2996 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
2997                                            gpointer user_data)
2998 {
2999         ModestDimmingRule *rule = NULL;
3000
3001         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3002         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3003         rule = MODEST_DIMMING_RULE (user_data);
3004
3005         /* Check dimmed rule */
3006         return !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
3007 }
3008
3009 gboolean
3010 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
3011                                          gpointer user_data)
3012 {
3013         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3014
3015         ModestMsgEditFormat format =
3016           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
3017
3018         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
3019 }
3020
3021 static gboolean
3022 _send_receive_in_progress (ModestWindow *win)
3023 {
3024         ModestMailOperationQueue *queue;
3025         GSList *op_list, *node;
3026         gboolean found_send_receive;
3027
3028         queue = modest_runtime_get_mail_operation_queue ();
3029         op_list = modest_mail_operation_queue_get_by_source (queue, G_OBJECT (win));
3030
3031         found_send_receive = FALSE;
3032         for (node = op_list; node != NULL; node = g_slist_next (node)) {
3033                 ModestMailOperation *op;
3034
3035                 op = (ModestMailOperation *) node->data;
3036                 if (modest_mail_operation_get_type_operation (op) == MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE) {
3037                         found_send_receive = TRUE;
3038                         break;
3039                 }
3040         }
3041
3042         if (op_list) {
3043                 g_slist_foreach (op_list, (GFunc) g_object_unref, NULL);
3044                 g_slist_free (op_list);
3045         }
3046
3047         return found_send_receive;
3048 }
3049
3050 static gboolean
3051 _msgs_send_in_progress (void)
3052 {
3053         ModestCacheMgr *cache_mgr;
3054         GHashTable *send_queue_cache;
3055         ModestTnySendQueue *send_queue;
3056         GSList *send_queues = NULL, *node = NULL;
3057         gboolean found = FALSE;
3058
3059         cache_mgr = modest_runtime_get_cache_mgr ();
3060         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
3061                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
3062
3063         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
3064
3065         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
3066                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
3067
3068                 /* Check if msg uid is being processed inside send queue */
3069                 if (modest_tny_send_queue_sending_in_progress (send_queue)) {
3070                         found = TRUE;
3071                         break;
3072                 }
3073         }
3074
3075         g_slist_free (send_queues);
3076
3077         return found;
3078 }
3079
3080 /*****************************************************************************/
3081 /********************** HILDON2 only dimming rules ***************************/
3082 /*****************************************************************************/
3083
3084 #ifdef MODEST_TOOLKIT_HILDON2
3085 gboolean
3086 modest_ui_dimming_rules_on_header_window_move_to (ModestWindow *win, gpointer user_data)
3087 {
3088         ModestDimmingRule *rule = NULL;
3089         gboolean dimmed = FALSE;
3090
3091         g_return_val_if_fail (MODEST_IS_HEADER_WINDOW(win), FALSE);
3092         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3093         rule = MODEST_DIMMING_RULE (user_data);
3094
3095         /* Check dimmed rule */
3096         dimmed = _transfer_mode_enabled (win);
3097         if (dimmed)
3098                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3099
3100         if (!dimmed) {
3101                 GtkWidget *header_view;
3102                 TnyFolder *folder;
3103
3104                 header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
3105                 folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
3106                 if (folder) {
3107                         dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
3108                                 modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
3109
3110                         if (!dimmed &&
3111                             (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
3112                                 dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
3113                         }
3114                         g_object_unref (folder);
3115                 }
3116         }
3117
3118         return dimmed;
3119 }
3120
3121 gboolean
3122 modest_ui_dimming_rules_on_folder_window_move_to (ModestWindow *win, gpointer user_data)
3123 {
3124         ModestDimmingRule *rule = NULL;
3125         gboolean dimmed = FALSE;
3126
3127         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3128         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3129         rule = MODEST_DIMMING_RULE (user_data);
3130
3131         /* Check dimmed rule */
3132         dimmed = _transfer_mode_enabled (win);
3133         if (dimmed)
3134                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3135
3136         if (MODEST_IS_FOLDER_WINDOW (win)) {
3137                 ModestFolderView *folder_view;
3138                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3139                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3140                                                                        MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE);
3141         }
3142
3143         if (!dimmed) {
3144                 dimmed = _transfer_mode_enabled (win);
3145                 if (dimmed)
3146                         modest_dimming_rule_set_notification (rule, "");
3147         }
3148
3149         return dimmed;
3150 }
3151
3152 gboolean
3153 modest_ui_dimming_rules_on_folder_window_delete (ModestWindow *win, gpointer user_data)
3154 {
3155         ModestDimmingRule *rule = NULL;
3156         gboolean dimmed = FALSE;
3157
3158         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3159         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3160         rule = MODEST_DIMMING_RULE (user_data);
3161
3162         /* Check dimmed rule */
3163         dimmed = _transfer_mode_enabled (win);
3164         if (dimmed)
3165                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3166
3167         if (MODEST_IS_FOLDER_WINDOW (win)) {
3168                 ModestFolderView *folder_view;
3169                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3170                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3171                                                                        MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE);
3172         }
3173
3174         if (!dimmed) {
3175                 dimmed = _transfer_mode_enabled (win);
3176                 if (dimmed)
3177                         modest_dimming_rule_set_notification (rule, "");
3178         }
3179
3180         return dimmed;
3181 }
3182
3183 gboolean
3184 modest_ui_dimming_rules_on_edit_accounts (ModestWindow *win, gpointer user_data)
3185 {
3186         return !modest_account_mgr_has_accounts (modest_runtime_get_account_mgr (), TRUE);
3187 }
3188 #endif